Hinges for abutting door sashes

ABSTRACT

This disclosure relates to a novel hinge including a pair of pivotally united hinge elements, one of the hinge elements including a T-shaped extension whose cross bar is received in a generally U-shaped groove of another of the hinge elements, and means for locking the T-shaped extension to another hinge element. Preferably, the locking means is a screw threaded into a bore of the cross bar which when rotated causes the cross bar to bind and thus lock within the U-shaped groove. In another embodiment of the invention a tapered bore formed in a slit end of the cross bar receives a tapered screw such that rotation of the latter spreads the slit end of the cross bar to again cause clamping within the U-shaped groove. In both hinge structures, another screw disposed in the cross bar normal to the locking screw provides relative adjustment between the hinge elements.

tlnited States Patent 1191 Griinert et a1. Oct. 7, 1975 [54] HINGES FOR ABUTTING DOOR SASHES 3,748,689 7/1973 Grunert 16/129 3,774,345 11/1973 Cole et al. 16/130 x [75] Inventors: Hellmuth Griinert, Hoffnungsthal;

Theodor Vitt, Porz-Eil; Johannes Gtirtz, Bensberg-Refrath, all of [21] Appl. No.: 451,560

[30] Foreign Application Priority Data Mar. 24, 1973 Germany 2314691 Nov. 29, 1973 Germany 2359520 U.S. Cl. 16/164; 16/129; 16/131 Int. C13... EOSD 3/06; EOSD 3/08; EOSD 3/10; EOSD 15/52 Field of Search 16/129, 130, 131, 132, 16/133, 134, 171, 172, 173, 174, 164, 166; 99/377, 379, 402

[5 6] References Cited UNITED STATES PATENTS 3,626,548 12/1971 Grunert ..16/129X Primary ExaminerGeo. V. Larkin Attorney, Agent, or Firm-Diller, Brown, Ramik & Wight [5 7] ABSTRACT This disclosure relates to a :novel hinge including a pair of pivotally united hinge elements, one of the hinge elements including a T-shaped extension whose cross bar is received in a generally U-shaped groove of another of the hinge elements, and means for locking the T-shaped extension to another hinge element.

In both hinge structures, another screw disposed in the cross bar normal to the locking screw provides relative adjustment between the hinge elements.

10 Claims, 6 Drawing Figures US, Patent Oct. 7,1975 Sheet 2 of2 3,909,879

FIGiW HINGES FOR ABU'I'IING DOOR SASHES The present invention relates to a hinge for abutting door sashes, more particularly a furniture hinge which is provided with a pair of hinge elements, one of which includes a generally T-shaped extension having a cross bar received in a generally U-shaped groove or slot of the other hinge element locking means are provided between the cross bar and one of the hinge elements so that the door sash can be removed without removing either of the hinge elements. This facilitates simplicity in alignment, readjustment or setting up.

Preferably, one or more faces of the cross bar and one or more surfaces of the U-shaped groove are provided with serrations which can be intermeshed when the hinge elements are relatively locked to provide variable adjustment between the hinge elements as well as insuring the retention of correctly mounted hinge elements.

Preferably, one of the hinge elements rests upon a mounting pad and is adjustably slidable relative thereto which structure dispenses with the need for removing the door sash if the hinge element associated with the mounting pad has to be adjusted a particular amount. This construction also creates a simplification in the setting up or hanging of the door sash on the frame.

With the above and other objects in view that will hereinafter appear, the nature of the invention will be more clearly understood by reference to the following detailed description, the appended claimed subject matter, and the several views illustrated in the accompanying drawing.

IN THE DRAWINGS FIG. 1 is a fragmentary cross-sectional view taken through a hinge of this invention, and illustrates a pair of hinge elements one of which includes a pivotally mounted extension of a T-shaped configuration as viewed in top plan, FIG. 2, and includes a cross bar carrying adjusting and locking screws.

FIG. 2 is a top plan view of the hinge of FIG. 1 and more clearly illustrates the cross bar being slidably mounted in a groove of one of thehinge elements with the locking screw clamping the cross bar to the latter mentioned hinge element.

FIG. 3 is an end view taken along line III of FIG. 2 and more clearly illustrates the relationship of the cross bar, the U-shaped groove, the adjusting screw and the locking screw.

FIG. 4 is a sectional view of another hinge constructed in accordance with this invention, and illustrates a pair of hinge elements, a generally T-shaped extension pivotally mounted therebetween, and one of a pair of screws in a cross bar thereof.

FIG. 5 is a top plan view of the hinge of FIG. 4 and more clearly illustrates the manner in which the cross bar is received in a U-shaped groove and the remaining locking screw threaded in a bore of a slit end of the cross bar.

FIG. 6 is an end view partially in cross section taken along line VI of FIG. 5, and more clearly illustrates the manner in which a tapered locking screw received in the threaded tapered bore of the cross bar spreads the same to lock the cross bar in the U-shaped groove.

A novel hinge constructed in accordance with this invention is illustrated in FIGS. 1 through 3, and is generally designated by the reference numeral 1. The

hinge 1 includes a pair of hinge elements 4, 8 which are mounted relative to one another for pivotal motion by means of an extension 2 at a pivot or pivot point 7. The hinge element 4 is received in. a recess 5 of a sash 6 and is secured thereat by one or more screws (unnumbered) in a conventional manner. The hinge element 8 is likewise secured to a frame or sash 3 by screws 10 which pass through elongated slots 16 of a plate 9 of the hinge element 8 as well as through cylindrical bores 15 of a mounting plate 11 which includes an elongated slot 14. The mounting plate III is joined to the plate 9 of the hinge element 8 by rivet 13 whose head (unnumbered) rides in the slot 14. Due to the elongated nature of the slots 14, 16 the hinge plate 8 can be slid from left-to-right or right-to-left, as viewed in FIG. 2, until a desired point of adjustment is reached after which the screws 10 are rotated home to prevent further relative motion between the elements 8, 1 1. This permits rapid adjustment and/or readjustment of the hinge element 8 relative to the sash and/or frame 3.

The hinge element 8 further includes a pair ofupstanding sidewalls 8b, 8b (FIG. 2) and an end wall 8a having a guide slot or slit 18 which guides a neck 17a of the extension 2. The extension 2 further includes a cross bar 17 which, as viewed in top plan view (FIG. 2), imparts a generally T-shaped configuration to the extension 2. The extension 2 and. the crossbar 17 are individual elements connected to each other by a screw or similar fastener 19.

The cross bar has opposite ends 17b received in a generally U-shaped groove formed in the sidewalls 8b, 8b of the hinge element 8. The leftward facing surfaces of the cross bar ends 17b, 17b, as viewed in FIG. 2, are preferably serrated as are the opposing surfaces (unnumbered) of the groove 8c to effect a locking between the groove 80 and the cross bar 17, in a manner to be described more fully hereinafter.

The cross bar is relieved by a notch 22 in order to provide an access area for reaching one of the screws 10 with a screw driver (FIG. 2). Furthermore, though the cross bar 17 is formed as an integral portion of the extension 2 along with the neck 17a, the cross bar can as well be a separate element and secured to the extension 2 by a screw in the manner illustrated in phantom outline in FIG. 2.

The ends of the cross bar are each provided with a threaded bore (unnumbered) for receiving respective locking and adjusting screws 20, 21 which are normal to each other and each are also normal to the pivot axis 7. By rotating the screw 21 (FIG. 3) the cross bar can be moved up or down within the U-shaped slot 8c. Thus, adjustment of the extension 2 and hence relative adjustment between the hinge elements 4 and 8 is readily achieved.

By rotating the screw 20 clockwise as viewed in FIG. 3, its end will bear against the wall 8a forcing the cross bar 17 to the left in the groove 80 until the serrated leftward facing faces of the ends 17b, 17b are driven against the surfaces of the groove 80 opposing such cross bar and faces. By the cross bar serrations (not shown) and groove serrations (also not shown) interengaging under the clamping force of the screw 20 the cross bar 17 is thereby securely clamped to the hinge element 8 and the adjustment achieved by the positioning of the screw 21 cannot be changed unintentionally.

Another hinge constructed in accordance with this invention is illustrated in FIGS. 4 through 6 and struca cross bar 17 having ends 17a, 17b and a neck 17c.

The extension 2 is pivotally connected to a pair of rods 2a, 2b (FIG. 4) which in turn are pivotally connected to the hinge element 4' which is secured in a recess 5 of a sash or frame 6 by screws (unnumbered).

The hinge element 8' has a bottom plate 9 which is apertured to receive screws 10' for securing the sash or frame thereto.

The hinge element 8' likewise includes upstanding sidewalls 8b, 8b which define a generally U-shaped groove 8c in conjunction with an upstanding wall 8a having a vertically disposed slit or slot 18'.

The cross bar 17 carries an adjusting screw 21' in the end 17a which functions identically to the adjusting screw 21 of the hinge 1. However, in lieu of the locking screw of the hinge l the hinge l is provided with a different locking mechanism including a slit (FIG. 5) opening through the end 17b of the cross bar 17' and into a tapered bore 24a having a lower threaded end 24b for receipt of a tapered portion 23a and a threaded portion 23b, respectively, of a locking screw 23. As the screw is rotated downwardly the tapered portion 23a thereof causes the end 1717 of the cross bar 17 to spread whereupon serrated faces of the end 17b contact like serrated surfaces of the grooves 8c resulting in a locking between the cross bar 17' and the hinge 8. This locking maintains the adjusted position earlier established by the rotation of the screw 21 While preferred forms and arrangements of parts have been shown in illustrating the invention, it is to be clearly understood that various changes in detail and arrangement of parts may be made without departing from the spirit and scope of this disclosure.

We claim:

1. A hinge comprising a pair of hinge elements, an extension having opposite ends, means pivotally mountingone of said ends to one of said hinge elements, said pivotally mounting means defines a pivot axis, the other of said ends being of a T-shaped configuration defined by a neck and a crossbar, a slot formed in a wall of the other of said hinge elements, said neck being received in said slot, means for locking said extension to said other hinge element, means for adjusting the position of said neck within said slot in a direction generally normal to said pivot axis, and said adjusting means being a screw threaded in said crossbar with'the axis thereof being disposed generally normal to the pivot axis of said pivotally mounting means.

2. The hinge as defined in claim 1 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screw passes through said crossbar and bottoms against said second wall. 9 I i 3. The hinge as defined in claim 2 wherein said locking means in a screw, the other of said hinge elements includes a second wall transverse to said firstmentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.

4. The hinge as defined in claim 1 wherein said locking means is a screw, the other of said hinge elements includes a second wall transverse to said firstmentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.

5. The hinge as defined in claim 1 wherein said crossbar includes opposite ends, said locking means includes a tapered threaded bore in an end of said crossbar receiving a screw and a slit opening into said tapered threaded bore whereby said last-mentioned crossbar end may be spread, and a generally U-shaped groove receiving said last-mentioned crossbar end whereby upon the spreading of the latter the same binds within said U-shaped groove.

6. The hinge as defined in claim 5 wherein said screws include axes in generally parallel relationship to each other. I

7. The hinge as defined in claim 6 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.

8. The hinge as defined in claim 7 wherein said adjusting screw bottoms against said second wall.

9. The hinge as defined in claim 5 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.

10. The hinge as defined in claim 9 wherein said adjusting screw bottoms against said second wall. 

1. A hinge comprising a pair of hinge elements, an extension having opposite ends, means pivotally mounting one of said ends to one of said hinge elements, said pivotally mounting means defines a pivot axis, the other of said ends being of a T-shaped configuration defined by a neck and a crossbar, a slot formed in a wall of the other of said hinge elements, said neck being received in said slot, means for locking said extension to said other hinge element, means for adjusting the position of said neck within said slot in a direction generally normal to said pivot axis, and said adjusting means being a screw threaded in said crossbar with the axis thereof being disposed generally normal to the pivot axis of said pivotally mounting means.
 2. The hinge as defined in claim 1 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screw passes through said crossbar and bottoms against said second wall.
 3. The hinge as defined in claim 2 wherein said locking means in a screw, the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.
 4. The hiNge as defined in claim 1 wherein said locking means is a screw, the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said last-mentioned screw bottoms against said first-mentioned wall and has an axis generally normal to said pivot axis.
 5. The hinge as defined in claim 1 wherein said crossbar includes opposite ends, said locking means includes a tapered threaded bore in an end of said crossbar receiving a screw and a slit opening into said tapered threaded bore whereby said last-mentioned crossbar end may be spread, and a generally U-shaped groove receiving said last-mentioned crossbar end whereby upon the spreading of the latter the same binds within said U-shaped groove.
 6. The hinge as defined in claim 5 wherein said screws include axes in generally parallel relationship to each other.
 7. The hinge as defined in claim 6 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.
 8. The hinge as defined in claim 7 wherein said adjusting screw bottoms against said second wall.
 9. The hinge as defined in claim 5 wherein the other of said hinge elements includes a second wall transverse to said first-mentioned wall, and said screws have axes disposed generally normal to said second wall.
 10. The hinge as defined in claim 9 wherein said adjusting screw bottoms against said second wall. 